I'd been seconding you'd been seconding he'd been seconding we'd been seconding you'd been seconding they'd been seconding
Future
I'll second you'll second he'll second we'll second you'll second they'll second
Future continuous
I'll be seconding you'll be seconding he'll be seconding we'll be seconding you'll be seconding they'll be seconding
Future perfect
I'll have seconded you'll have seconded he'll have seconded we'll have seconded you'll have seconded they'll have seconded
Future perfect continuous
I'll have been seconding you'll have been seconding he'll have been seconding we'll have been seconding you'll have been seconding they'll have been seconding
Conditional
Present
I'd second you'd second he'd second we'd second you'd second they'd second
Present continuous
I'd be seconding you'd be seconding he'd be seconding we'd be seconding you'd be seconding they'd be seconding
Past
I'd have seconded you'd have seconded he'd have seconded we'd have seconded you'd have seconded they'd have seconded
Past continuous
I'd have been seconding you'd have been seconding he'd have been seconding we'd have been seconding you'd have been seconding they'd have been seconding